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Shunya Adachi (Chiba University)
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Huan Dai (University of Lille)
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Hubert Grzebuła (Cardinal Stefan Wyszyński University in Warsaw)
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Yoshishige Haraoka (Josai University)
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Sampei Hirose (Shibaura Institute of Technology)
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Javier Jiménez-Garrido (University of Cantabria)
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Ilpo Laine (University of Eastern Finland)
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Alberto Lastra (University of Alcalá)
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Zinelaabidine Latreuch (National Higher School of Mathematics, Algeria)
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Grzegorz Łysik (Jan Kochanowski University in Kielce)
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Stéphane Malek (University of Lille)
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Toshiyuki Mano (University of the Ryukyus)
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Sławomir Michalik (Cardinal Stefan Wyszynski University in Warsaw)
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Ignacio Miguel (University of Valladolid)
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Benjamin Mitchell (University of Kent)
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Hidehito Nagao (Akashi College)
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Haru Negami (Chiba University)
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Hiroshi Ogawara (Josai University)
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Yasunori Okada (Chiba University)
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Toshio Oshima (Josai University)
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Javier Sanz (University of Valladolid)
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Takahiro Shigaki (Kwansei Gakuin University)
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Tsvetana Stoyanova (Sofia University "St. Kliment Ohridski", Bulgaria)
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Maria Suwińska (Cardinal Stefan Wyszynski University in Warsaw)
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Yoshitsugu Takei (Doshisha University)
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Yumiko Takei (Ibaraki College)
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Shofu Uchida (Kindai University)
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Paweł Wójcicki (Warsaw University of Technology)
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Masafumi Yoshino (Hiroshima University)
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Federico Zullo (University of Brescia)